docs: def get_event_data(self, section):
          """ Return either the template or complement event data, if present.
          
          :param section: Either template or complement.
          :return: Event data table.
          """
          event_group = '{}/BaseCalled_{}'.format(self.group_name, section)
          data = self.handle.get_analysis_dataset(event_group, 'Events')
          return data